GEKCO DIGITAL CLOCK P/N CLK036 ASSEMBLY & OPERATION MANUAL
GEKCO INC.
Rev 1.0
1
TABLE OF CONTENTS
1.
INTRODUCTION ................................................................................................................................................ 3
2.
OPERATIONAL SUMMARY .......................................................................................................................... 3
3.
PARTS AND UNPACKING .............................................................................................................................. 4
3.1.
T
OP
L
EVEL
P
ARTS
L
IST
...................................................................................................................................... 4
3.2.
D
ISPLAY
B
OARD
P
ARTS
L
IST
.............................................................................................................................. 5
3.3.
M
AIN
B
OARD
P
ARTS
L
IST
................................................................................................................................... 5
3.4.
F
INAL
A
SSEMBLY
H
ARDWARE
P
ARTS
L
IST
....................................................................................................... 7
3.5.
E
NCLOSURE
P
ARTS
L
IST
..................................................................................................................................... 8
4.
ASSEMBLY NOTES ........................................................................................................................................... 9
4.1.
TOOLS ............................................................................................................................................................... 9
4.2.
ASSEMBLY ...................................................................................................................................................... 9
4.3.
SOLDERING ..................................................................................................................................................... 9
5.
STEP-BY-STEP ASSEMBLY ......................................................................................................................... 10
5.1.
M
AIN
C
IRCUIT
B
OARD
...................................................................................................................................... 10
6.
INITIAL TESTS ................................................................................................................................................. 12
7.
FINAL TESTS .................................................................................................................................................... 13
8.
IN CASE OF DIFFICULTY ............................................................................................................................ 13
9.
FINAL PCA ASSEMBLY ................................................................................................................................ 13
10.
FINAL ASSEMBLY ...................................................................................................................................... 13
11.
THEORY OF OPERATION ....................................................................................................................... 16
11.1.
B
LOCK
D
IAGRAM
.............................................................................................................................................. 16
11.1.
M
AIN
B
OARD
C
IRCUIT
D
ESCRIPTION
............................................................................................................... 16
11.2.
D
ISPLAY
B
OARD
C
IRCUIT
D
ESCRIPTION
.......................................................................................................... 17
12.
FIRMWARE .................................................................................................................................................. 18
12.1.
F
LOW
C
HART
.................................................................................................................................................... 18
12.2.
F
IRMWARE
D
ESIGN
D
ESCRIPTION
.................................................................................................................... 19
13.
PCA PICTORIAL DIAGRAMS ................................................................................................................. 19
13.1.
M
AIN
B
OARD
.................................................................................................................................................... 19
13.2.
D
ISPLAY
B
OARD
............................................................................................................................................... 20
14.
SCHEMATIC MAIN BOARD .................................................................................................................... 22
15.
SCHEMATIC DISPLAY BOARD ............................................................................................................. 23
16.
DOCUMENT REVISION HISTORY........................................................................................................ 24
